apa

Track multiple moving averages with Apache Commons Math DescriptiveStatistics

匿名 (未验证) 提交于 2019-12-03 01:05:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am using DescriptiveStatistics to track the moving average of some metrics. I have a thread that submits the metric value every minute, and I track the 10 minute moving average of the metric by using the setWindowSize(10) method on DescriptiveStatistics. This works fine for tracking a single moving average but I actually need to track multiple moving averages, i.e. the 1 minute average, the 5 minute average, and the 10 minute average. Currently I have the following options: Have 3 different DescriptiveStatistics instances with 3 different

GB/T 7714与 MLA与APA

妖精的绣舞 提交于 2019-12-02 14:34:29
GB/T 7714与 MLA与APA GB/T 7714 MAL APA GB/T 7714 GB/T是指推荐性国家标准(GB/T),"T"是推荐的意思。 MAL the Modern Language Association :现代语言协会 一般偏重人文学科的应用MLA; APA the American Psychological Association:美国心理协会 偏重自然学科的应用APA。 来源: https://blog.csdn.net/weixin_38534337/article/details/102775485

Introducing KSQL: Streaming SQL for Apache Kafka

泪湿孤枕 提交于 2019-11-27 13:12:36
Update: KSQL is now available as a component of the Confluent Platform . I’m really excited to announce KSQL, a streaming SQL engine for Apache Kafka®. KSQL lowers the entry bar to the world of stream processing, providing a simple and completely interactive SQL interface for processing data in Kafka. You no longer need to write code in a programming language such as Java or Python! KSQL is distributed, scalable, reliable, and real time. It supports a wide range of powerful stream processing operations including aggregations, joins, windowing, sessionization, and much more. A Simple Example

【洛谷 P5273】【模板】多项式快速幂 (加强版)(多项式Ln+Exp)

拜拜、爱过 提交于 2019-11-27 11:05:06
传送门 考虑当 a 0 = ̸ 1 a_0=\not 1 a 0 ​ = ̸ ​ 1 的时候是没法直接用 L n Ln L n 的 一个显然的想法是找到第一个 a 0 = ̸ 0 a_0=\not 0 a 0 ​ = ̸ ​ 0 的地方 a p a_p a p ​ 把 a a a 左移 p p p 位后除以 a p a_p a p ​ ,这样就保证常数项为 1 1 1 了 最后只需要乘上 a p k x p k a_p^kx^{pk} a p k ​ x p k 就可以了 而且我们只需要把前 n − p k n-pk n − p k 次项拿来做快速幂就可以了 # include <bits/stdc++.h> using namespace std ; # define gc getchar inline int read ( ) { char ch = gc ( ) ; int res = 0 , f = 1 ; while ( ! isdigit ( ch ) ) f ^ = ch == '-' , ch = gc ( ) ; while ( isdigit ( ch ) ) res = ( res + ( res << 2 ) << 1 ) + ( ch ^ 48 ) , ch = gc ( ) ; return f ? res : - res ; } # define re